Phase identification

Looking at qualitative identification of a macroscopic phase

What is measured?

The measurement identifies the phases present in the sample.

Adjustment of peak position leads to determination of usual morphologies and provides a quick access to their characteristic dimensions.

Typical phases are : lamellar, hexagonal, cubic…

Figure 1. Identification of a hexagonal 2D supperlattice.

Reference: García‐Iglesias, M. , de Waal, B. F., de Feijter, I. , Palmans, A. R. and Meijer, E. W. (2015), Nanopatterned Superlattices in Self‐Assembled C2‐Symmetric Oligodimethylsiloxane‐Based Benzene‐1,3,5‐Tricarboxamides. Chem. Eur. J., 21: 377-385. doi:10.1002/chem.201404375)

Samples

Typical samples for this measurement are:

  • Micelles

  • Block copolymer systems in all forms

  • Liquid crystals

  • Powders

  • Nanostructured solids

Methods & standards

Standards & methods used for phase identification:

XSACT analysis software implements the above method.

SAXS Data Analysis

Advantages of SAXS

Why use SAXS for phase identification?

  • SAXS measurements are suitable for in situ and/or operando conditions

  • SAXS allows to follow direct phase transformation

  • It accurately reveals the evolution of phases as a function of external parameters such as temperature, reaction time or shear.

Products

All these measurements are possible directly in your lab.

Nano-inXider

Smart nanoscale characterization

Xeuss 3.0

The Next Generation
(GI-)SAXS/WAXS/USAXS beamline for the laboratory